Traction-engine



(ModeL) ,LA FAYETTE LILLARD.

TRACTION ENGINE. 4 No. 278,154. Patented May 22, 1883.

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UNITED STATES PATENT OFFICE.

LA FAYETTE LILLARD, OF DIXON, CALIFORNIA.

TRACTION-ENGINE.

SPECIFICATION forming part of Letters Patent No. 278,154, dated May 22,1883. Application filed October 7, 1882. (llIodeL) T all whom it mayconcern Be it known that L'LA FAYETTE LILLARD, a citizen of the UnitedStates, residing at Dixon, in the county of Solano and State ofCalifornia, have invented a new and useful Steam Traction-Engine, ofwhich the following is a specification.

My invention relates to improvements in steam traction-engines in whicheach drivingwheel has two bearings, one of which is an axle attached toend of boiler, and the other bearing is on anti-friction rollerssurrounding boiler; and the objects of my improvements are, first, toprovide strength with as little weight as possible; second,'to affordfacilities for preventing flnesfrom heating" while out of water; third,to provide drivingwheels with surface sufiicient to prevent them fromsinking deep into the ground. Iattain these ob- 2o jects by themechanism illustrated in the ac eompauying drawings, in which- Figure 1is a vertical and longitudinal section of the boiler with onedriving-wheel. Fig. 2 is a vertical cross-section of boiler anddriving-wheel with its anti-friction rollers. Fig. 3 shows a perspectiveview of drivingwheel.

Similar letters refer to similarparts throughout the several views.

The boiler B forms a part of the frame-work of the engine.

F is the fire-box at the middle of boiler. The flame and heated airenter the flues'g g, and return through the fines h h to the smoke{ boxS.

P is a-partition which separates the smokebox from the firebox.

D is asafety-damper so adjusted that it can be made to close either ofthe return-fines 7b..

This is to be done when the water leaves the o flues of the higher endof the boiler. This will prevent, the fines from heating hot enough tocause a collapse.

W is the driving-wheel, with one bearing on the axle X, which isattached to the end of the boiler. The other bearing is on the antifriction rollers r 1'. These rollers roll on the grooved ring 0 c, whichsurrounds the boiler and acts as a guide for the anti-friction rollers rr. axles attached to the ring 0 c, which holds them in their relativepositions. There is also within thewheels a groove, m, which, inconjunction with ring 0 0, guides the antifriction rollers.

The plan of communicating motion to the driving-wheel is not shown inthe drawings, as I do not claim any improvementover the old methods.

What I claim as my invention, and desire to ings-viz., one on the axleX, and the other bearing on the anti-friction rollers r 1, whichsurround the boiler B- ail substantially as set forth.

LA FAYETTE LILLARD.

Witnesses:

BERNHARD ETTLINGER, J. M. GREGORY.

These anti-friction rollers revolve on 50

